气候变化领域集成服务门户(CCPortal): Tropical cyclone frequency inferred from intra-annual density fluctuations in longleaf pine in Florida, USA

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DOI	10.3354/CR01573
	Tropical cyclone frequency inferred from intra-annual density fluctuations in longleaf pine in Florida, USA
	Mitchell T.J.; Knapp P.A.; Ortegren J.T.
发表日期	2021
ISSN	0936-577X
卷号	78 期号:3
英文摘要	We present a new method for identifying historic tropical cyclone activity utilizing frequencies of intra-annual density fluctuations in longleaf pine in western Florida. In addition, in this work we provide information about the causal factors that determine the formation of intraannual density fluctuations (IADFs) in longleaf pine latewood. Specifically, we test the viability of using late latewood (L+) IADFs in longleaf pine as a proxy for historic tropical cyclone frequency and precipitation for the period 1950-2017. The stabilized frequency of L+ IADF occurrence is significantly (p < 0.01) associated with the Palmer drought severity index (PDSI) for the months June through October, indicating that high amounts of late growing-season moisture promote the formation of IADFs in latewood. We find the strongest relationships between PDSI and IADF occurrence during September and October, indicating the influence of tropical cyclone (TC)-sourced precipitation on IADF formation. High IADF stabilized frequencies (i.e. >0.50) nearly always (88%) coincide with a TC tracking into the study area, and we find a significant (p < 0.01) relationship between TC-sourced precipitation and the stabilized frequency of L+ IADFs. Via this relationship, reconstruction of historic tropical cyclone frequency and precipitation is probable, which would allow for increased understanding of historic tropical cyclone activity prior to the historic climate record. © 2019 Inter-Research.
英文关键词	Dendroclimatology; Florida; Intra-annual density fluctuation; Longleaf pine; Tropical cyclone
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183811
作者单位	Carolina Tree-Ring Science Laboratory, Department of Geography, Environment, and Sustainability, University of North Carolina at Greensboro, PO Box 26170, Greensboro, NC 27402, United States; Department of Earth and Environmental Sciences, University of West Florida, 11000 University Pkwy, Pensacola, FL 32514, United States
推荐引用方式 GB/T 7714	Mitchell T.J.,Knapp P.A.,Ortegren J.T.. Tropical cyclone frequency inferred from intra-annual density fluctuations in longleaf pine in Florida, USA[J],2021,78(3).
APA	Mitchell T.J.,Knapp P.A.,&Ortegren J.T..(2021).Tropical cyclone frequency inferred from intra-annual density fluctuations in longleaf pine in Florida, USA.Climate Research,78(3).
MLA	Mitchell T.J.,et al."Tropical cyclone frequency inferred from intra-annual density fluctuations in longleaf pine in Florida, USA".Climate Research 78.3(2021).